@font-face {
  font-family: "Instrument Serif";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./assets/fonts/instrument-serif-regular.ttf") format("truetype");
}

@font-face {
  font-family: "Instrument Serif";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("./assets/fonts/instrument-serif-italic.ttf") format("truetype");
}

:root {
  color-scheme: dark;
  font-family: "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
  background: #000;
  color: #fff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: #000; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: #000; color: #fff; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.liquid-glass {
  background: rgba(255, 255, 255, 0.01);
  background-blend-mode: luminosity;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: none;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.1), 0 18px 60px rgba(0, 0, 0, 0.16);
  position: relative;
  overflow: hidden;
}

.liquid-glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.4px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0.15) 20%, rgba(255, 255, 255, 0) 40%, rgba(255, 255, 255, 0) 60%, rgba(255, 255, 255, 0.15) 80%, rgba(255, 255, 255, 0.45) 100%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.landing-hero { min-height: 100vh; min-height: 100svh; position: relative; display: flex; flex-direction: column; overflow: hidden; isolation: isolate; background: #000; }
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center bottom; opacity: 0; z-index: -3; }
.hero-shade { position: absolute; inset: 0; z-index: -2; background: rgba(0, 0, 0, 0.42); }
.landing-nav-wrap { position: relative; z-index: 20; padding: 24px; }
.landing-nav { width: min(100%, 1024px); min-height: 58px; margin: 0 auto; padding: 8px 10px 8px 18px; border-radius: 999px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.landing-brand { display: inline-flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 750; white-space: nowrap; }
.landing-brand img { width: 28px; height: 28px; }
.landing-nav-links { display: flex; align-items: center; gap: 32px; margin-right: auto; }
.landing-nav-links a, .nav-signup { color: rgba(255, 255, 255, 0.78); font-size: 14px; font-weight: 650; transition: color 180ms ease; }
.landing-nav-links a:hover, .nav-signup:hover { color: #fff; }
.landing-nav-actions { display: flex; align-items: center; gap: 18px; }
.nav-login { padding: 10px 22px; border-radius: 999px; font-size: 14px; font-weight: 700; }

.hero-content { position: relative; z-index: 10; flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 28px 24px 56px; text-align: center; transform: translateY(-8%); }
.hero-kicker { margin: 0 0 20px; font-size: 11px; font-weight: 750; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.58); }
.hero-content h1 { margin: 0; font: 400 96px/0.88 "Instrument Serif", Georgia, serif; letter-spacing: 0; }
.hero-statement { margin: 12px 0 34px; font: 400 50px/1 "Instrument Serif", Georgia, serif; color: rgba(255, 255, 255, 0.88); }
.hero-statement em { color: #fff; }
.hero-start { width: min(100%, 560px); min-height: 62px; padding: 7px 7px 7px 24px; border-radius: 999px; display: flex; align-items: center; gap: 12px; }
.hero-start input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; color: #fff; font-size: 15px; }
.hero-start input::placeholder { color: rgba(255, 255, 255, 0.44); }
.hero-start button { width: 48px; height: 48px; flex: 0 0 48px; border: 0; border-radius: 50%; display: grid; place-items: center; background: #fff; cursor: pointer; transition: transform 180ms ease; }
.hero-start button:hover { transform: scale(1.05); }
.hero-start button img { width: 20px; filter: brightness(0); }
.hero-description { width: min(100%, 600px); margin: 18px auto 24px; color: rgba(255, 255, 255, 0.7); font-size: 14px; line-height: 1.8; }
.hero-secondary { padding: 12px 28px; border-radius: 999px; font-size: 14px; font-weight: 650; transition: background 180ms ease; }
.hero-secondary:hover, .hero-quick-links a:hover, .explore-button:hover { background: rgba(255, 255, 255, 0.06); }
.hero-quick-links { position: relative; z-index: 10; display: flex; justify-content: center; gap: 12px; padding: 0 24px 28px; }
.hero-quick-links a { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; transition: background 180ms ease, transform 180ms ease; }
.hero-quick-links a:hover { transform: translateY(-2px); }
.hero-quick-links img { width: 20px; filter: brightness(0) invert(1); opacity: 0.82; }

.section-shell { position: relative; overflow: hidden; background: #000; padding-inline: 24px; }
.section-inner { width: min(100%, 1152px); margin: 0 auto; position: relative; z-index: 1; }
.section-glow { position: absolute; inset: 0 0 auto; height: 420px; background: radial-gradient(ellipse at top, rgba(255, 255, 255, 0.035), transparent 70%); pointer-events: none; }
.section-glow.centered { inset: 15% 0 auto; background: radial-gradient(ellipse at center, rgba(255, 255, 255, 0.028), transparent 62%); }
.about-section { padding-top: 152px; padding-bottom: 64px; }
.section-label, .card-label { margin: 0 0 22px; color: rgba(255, 255, 255, 0.42); font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; }
.about-section h2 { max-width: 1050px; margin: 0; font-size: 64px; line-height: 1.12; font-weight: 450; letter-spacing: 0; }
.about-section h2 em, .philosophy-section h2 em { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; color: rgba(255, 255, 255, 0.58); }

.featured-section { padding-top: 40px; padding-bottom: 128px; }
.featured-inner { aspect-ratio: 16 / 9; min-height: 440px; border-radius: 8px; overflow: hidden; position: relative; background: #0b0b0b; }
.featured-inner > video { width: 100%; height: 100%; object-fit: cover; }
.featured-shade { position: absolute; inset: 36% 0 0; background: linear-gradient(to top, rgba(0, 0, 0, 0.75), transparent); }
.featured-copy { position: absolute; inset: auto 0 0; padding: 40px; display: flex; align-items: flex-end; justify-content: space-between; gap: 28px; }
.featured-copy article { max-width: 470px; padding: 28px; border-radius: 8px; }
.featured-copy article p:last-child { margin: 0; font-size: 15px; line-height: 1.8; color: rgba(255, 255, 255, 0.88); }
.explore-button { min-height: 46px; padding: 12px 24px; border-radius: 999px; display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; }
.explore-button img, .footer-inner > a img { width: 17px; filter: brightness(0) invert(1); }

.philosophy-section { padding-top: 120px; padding-bottom: 144px; }
.philosophy-section h2 { margin: 0 0 72px; font: 400 76px/1 "Instrument Serif", Georgia, serif; }
.philosophy-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.philosophy-media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 8px; background: #0c0c0c; }
.philosophy-media video { width: 100%; height: 100%; object-fit: cover; }
.philosophy-copy article { padding: 8px 0 32px; }
.philosophy-copy article + article { padding-top: 36px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.philosophy-copy article > p:last-child { margin: 0; color: rgba(255, 255, 255, 0.68); font-size: 17px; line-height: 1.9; }

.services-section { padding-top: 120px; padding-bottom: 144px; }
.services-head { margin-bottom: 52px; display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.services-head h2 { margin: 0; font-size: 48px; font-weight: 500; letter-spacing: 0; }
.services-head span { color: rgba(255, 255, 255, 0.4); font-size: 13px; }
.service-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; }
.service-card { border-radius: 8px; }
.service-media { aspect-ratio: 16 / 9; overflow: hidden; background: #0d0d0d; }
.service-media video { width: 100%; height: 100%; object-fit: cover; transition: transform 700ms ease; }
.service-card:hover .service-media video { transform: scale(1.04); }
.service-body { padding: 28px; }
.service-meta { display: flex; align-items: center; justify-content: space-between; color: rgba(255, 255, 255, 0.42); font-size: 11px; font-weight: 750; letter-spacing: 0.14em; }
.service-meta img { width: 34px; height: 34px; padding: 8px; border-radius: 50%; filter: brightness(0) invert(1); opacity: 0.72; }
.service-body h3 { margin: 22px 0 12px; font-size: 24px; font-weight: 600; }
.service-body p { margin: 0; color: rgba(255, 255, 255, 0.55); font-size: 14px; line-height: 1.85; }

.landing-footer { padding-top: 80px; padding-bottom: 36px; }
.footer-inner { padding: 42px 0; border-top: 1px solid rgba(255, 255, 255, 0.12); border-bottom: 1px solid rgba(255, 255, 255, 0.12); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; }
.footer-inner > div { display: flex; align-items: center; gap: 12px; font-size: 18px; }
.footer-inner > div img { width: 30px; height: 30px; }
.footer-inner > p { margin: 0; color: rgba(255, 255, 255, 0.7); }
.footer-inner > a { justify-self: end; padding: 12px 22px; border-radius: 999px; display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; }
.footer-legal { margin: 26px 0 0; text-align: center; color: rgba(255, 255, 255, 0.35); font-size: 12px; }

[data-reveal] { opacity: 0; transform: translateY(38px); transition: opacity 800ms ease, transform 800ms cubic-bezier(0.2, 0.7, 0.2, 1); }
[data-reveal="left"] { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal][data-delay="1"] { transition-delay: 120ms; }
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (max-width: 820px) {
  .landing-nav-links { display: none; }
  .hero-content h1 { font-size: 76px; }
  .hero-statement { font-size: 40px; }
  .about-section h2 { font-size: 48px; }
  .philosophy-section h2 { font-size: 60px; }
  .philosophy-grid, .service-grid { grid-template-columns: 1fr; }
  .featured-inner { aspect-ratio: 4 / 5; }
  .featured-copy { padding: 24px; flex-direction: column; align-items: stretch; }
  .explore-button { align-self: flex-start; }
  .footer-inner { grid-template-columns: 1fr; text-align: left; }
  .footer-inner > a { justify-self: start; }
}

@media (max-width: 560px) {
  .landing-nav-wrap { padding: 16px; }
  .landing-nav { padding-left: 14px; gap: 12px; }
  .landing-brand span { display: none; }
  .landing-nav-actions { gap: 10px; }
  .nav-signup { font-size: 13px; }
  .nav-login { padding: 9px 16px; }
  .hero-content { transform: none; padding-top: 18px; }
  .hero-kicker { max-width: 280px; line-height: 1.7; }
  .hero-content h1 { font-size: 64px; }
  .hero-statement { margin-top: 10px; font-size: 34px; }
  .hero-description { font-size: 13px; }
  .about-section { padding-top: 104px; }
  .about-section h2 { font-size: 38px; }
  .about-section h2 br { display: none; }
  .featured-section { padding-bottom: 80px; }
  .featured-inner { min-height: 600px; }
  .featured-copy article { padding: 22px; }
  .philosophy-section, .services-section { padding-top: 88px; padding-bottom: 100px; }
  .philosophy-section h2 { margin-bottom: 48px; font-size: 48px; }
  .philosophy-grid { gap: 38px; }
  .services-head h2 { font-size: 38px; }
  .services-head span { display: none; }
  .service-body { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  [data-reveal] { opacity: 1; transform: none; }
}